Erland



. (No Model.)

A M. SUTHERLANDKz F. 0. BROWN,

STYLOGRAPHIG FOUNTAIN PEN.

My w w. Mm J M 1 a V. lib SWAAIAMWMMM UNTTE STATES PATENT EETQE.

ALEXANDER M. SUTHERLAND AND FRANCIS 0. BROWN, OF NEW YORK, N. Y., ASSIGNORS TO THE MAGKINNON PEN COMPANY, OF SAME PLACE.

STYLOGRAPHIC FOUNTAlN=PEN.

SPECIFICATION forming part of Letters Patent No. 266,064, dated October 17, 1882. Application filed December 6, 1880. (No model.)

To all whom it may concern: elevation in Fig. 2, is designed as an improve- Be it known that we, ALEXANDER M. SU'rH- ment. Fig. 3is alongitudinal central sectional ERLAND and FRANCIS 0. BROWN, both citizens view of same Fig. 4., adetached enlarged view ot'theDominion of Canada, residingin the city, of the writing-point, illustrating the mode of 5 county, and State of New York, have invented adjustment thereof; Fig. 5. a view showing certain new and useful Improvements in Stylothe pen as closed and ready for carrying in the graphic Fountain-Pens; and we do hereby depocket. clarethe following to be a full, clear, and exact A is the barrel; B, the point-section; G, the description of theinvention, such as will enable protector; D, the air-tube; E, the air-cap, and 10 others skilled in the art to which it appertains F the needle.

to make and use the same. The barrel A ismade very much shorter but This invention relates to that class of writof somewhat greater diameter than the barrel ing-instruments termed stylographic fountas ordinarily made. (Represented in Fig. 1.) ain-pens. One end of this barrel, at A, is for a short dis- 15 The invention consiststance reduced in diameter, forming a shoulder, First, in a peculiar novel construction and A Theinteriorofthisend A is screw-threadl arrangement of the several parts of the dced to receive the point-section B. Within the vice that co-operate to form a practical worktop end of the barrel is received the head cl of ing pen, as follows: The barrel is closed at its the air-tube D. Upon thishead (l is the air- 20 top end by a plug, which forms the head of the cap E, made of such size as to just fit within air-tube, and has a reduced shouldered lower the protector and hold the same secure when end. The point-section containing thevalve or placed thereon. point-clearer devices is made gradually taper- It will be seen that the protector is received ing from top to point andwithout abrupt shoulover and directly upon the air-cap, which is 7 5 2 5 ders, and of less diameter than the shouldered made to receive it, instead of upon a small proend of the barrel into which it fits. The pointjection formed and extending above the cap, as protector is of about the same diameter and in the MacKinnon pen. Breakage of this part length as the barrel, and the air-cap'has n0 top is by this means avoided, and a more pleasing extension, as heretofore, and is of the same dioutline given to the pen. o ameter as the reduced end of the barrel, and re- The point-section, instead of tapering nearly ceives the protector directly thereon, whereby to the point and then terminating in an ahthe following useful results are accomplished: rupt shoulder, as shown at m 00, Fig 1, is made The weak portion of the point section is to taper gradually from top to point, the point strengthened, and the same is entirely prob being of an increased diameter and without tected when the pen is not in use. A proper shoulders, as at a0 41;, Fig. 1. By thus forming length of handle for a writing-instrument is the point-section the weak portion is strengthprovided. The parts both in use and when ened. Consequently the liability to break here closed present a smooth unbroken outline, thus is removed. advantages in its carrying and handling are The writing-point of the pen is composed of 40 secured. The usual small shouldered writing a metal tube, G, formed, as shown in Fig. 4., end and projection on top of air-cap are diswith a head, 1, a portion of which, at 2, is pensed with. made cylindrical and the front portion taper- Second, in a peculiar novel construction and in g to a point,which is tipped with a non-weararrangenientofthewriting-point,whichismade ing material. A long finely screw-threaded 5 5 adjustable in its bearings, all as and for the part,3,extendsrearwardfromthehead1,which, purposes hereinafter more fully described and when in position, enters corresponding screwclaimed threads in the point-section. By unscrewing In the drawings hereto annexed, forming or screwing up this writing-point G, the proper part of this specification, Figure l is a View of protrusion of the needle from the pen-point is 50 a long-sized or desk MacKinnon pen, upon regulated.

which the present invention, as illustrated in Within the end of thepoint-section is formed a recess, a, which receives the cylindrical part A point-section B,containing the valve mech- 2 of the writing-point. This said part 2 is made to fit close and tight within the recess a in the point-section to prevent leakage. hen using this form of adjustable point the needle itself may have no means for or be vertically adjustable, except the slight vertical and lat eral vibration usual, as has heretofore been the case. The adjustment of the needle can therefore be regulated without opening the pen.

On the head 1 of the writing-point is formed a key-head, 4, to receive a key for adjusting the writing-point, as shown in inverted plan at bottom of Fig. 4. I

Having thus described our invention, what We claim as new, and desire to secure by Letters Patent, is-'- 1. The combination and arrangement, in a fountain-pen, of barrelA, closed at its top end by'plug d, which forms the head of the airtube D, and with reduced shouldered end A anism, made gradually tapering from top to pointand without abrupt shoulders, air-cap E, of equal diameter with the shouldered end A of the barrel, and point cover or protector C, made of about equal length and diameter with the barrel, and adapted to fit upon the part A ofthe barrel to protect the point when the pen is notin use, and upon the cap E to form an extension of the bod Y when the pen is in use, all as and for the purposes hereinbefore described and shown.

2. In combination with the point-section formed with recess a, the writing-point G, formed with tapering writing part 1, cylindrical part 2, fitting within the recess a, and screw-shaft 3, as and for thepurposes described.

ALEXANDER M. SUTIIERLAND. FRANCIS 0. BROWN. Witncsses:

B. S. CLARK, O. R. CLARKE. 

